Which of the following structures is common to plant and animal cells?
a. chloroplast
b. wall made of cellulose
c. tonoplast.
d. mitochondrion
e. centriole
d. mitochondrion
You might also like to view...
The gonads produce steroids. Which organelle would likely be present in this tissue?
A. ribosome B. lysosome C. smooth endoplasmic reticulum D. mitochondria E. contractile vacuole
An _____ is a nonphotosynthetic plant—a third member of a symbiotic relationship involving a fungus and another plant, obtaining nutrients from these two members.
Fill in the blank(s) with the appropriate word(s).
Shannon has considered herself an extremely healthy person for most of her life. She is a marathon runner and watches her diet very carefully. She has 8% body fat, weighs 105 pounds, and is 5 foot 10 inches tall
Why might Shannon's health still be of concern? A) She is overweight for her height. B) She likely has metabolic problems associated with high blood pressure. C) She doesn't have enough body fat for menstruation or pregnancy. D) She doesn't consume enough nutrients for normal bodily functions.
A woman is having trouble becoming pregnant. Examination of her partner's sperm indicates that dynein feet are missing from the flagella in his sperm cells. A physician explains that this could interfere with fertility by
A) preventing the sperm from attaching to the egg cell. B) preventing the sperm from swimming to the egg cell. C) preventing the sperm from producing enough energy to power swimming. D) interfering with the attachment of the flagella to the sperm.